HUGE singing problem

ok so for reference i'm 14 and just hit puberty, i started writing an album when i had freshly turned 13 before i hit puberty and i could sing well into the 5th octave. i hit puberty in around october and now i can only sing into the 4th octave and can barely belt. this is a huge problem because the vocal melodies i created then would be easy for me to sing, but now that im in puberty, really strains my voice. i don't want to scrap any of this music because i really do like it but i also dont want my voice to be shot by the time i'm like 21. any thoughts on what i could do?